21808218

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{51193}}^1$

素因数の和:51269

約数の個数: 16

約数和(自身を含む): 44231616

約数和(自身を除く): 22423398

約数列:

[1, 2, 3, 6, 71, 142, 213, 426, 51193, 102386, 153579, 307158, 3634703, 7269406, 10904109, 21808218]

約数ペア:

[(1, 21808218), (2, 10904109), (3, 7269406), (6, 3634703), (71, 307158), (142, 153579), (213, 102386), (426, 51193)]